# 目标信息

std_msgs/Header header

## 目标位置[全局坐标系下：前方x为正，左方y为正，上方z为正]
float32[3] position

## 无人机与目标绝对距离
float32  distance

## 识别状态
uint8 Detect_state
## 识别状态枚举
uint8 WAITING_RESULT = 0                ### 等待检测结果
uint8 TRACKING = 1                      ### 跟踪模式
uint8 LOST = 2                          ### 丢失目标
uint8 LANDING = 3                       ### 降落

##  跟踪状态
uint8 tracking_state
